The aim of the invention is a simplified adoption of a required position of an airbag (70) in a motor vehicle (1) having a roof (10) and having at least one movable seat arrangement (30) in a vehicle interior (15). This aim is achieved, according to the invention, in that at least one receptacle (50) is mounted movably on the roof (10) and is configured in such a way that the position of the receptable is spatially constant relative to the seating arrangement (30).